Definitions
1.Nouncustom; tradition (traditional practice or behavior)"É costume trazer um pinheiro para dentro de casa durante o Natal."
2.Nouncustom; habit (common or frequently repeated behavior)"Temos o costume de comer pão toda manhã."
3.Nouncustom (long-established practice, considered as unwritten law)
4.Nounoutfit; costume (a set of clothes appropriate for a particular activity)
5.Verbinflection of costumar:
first/third-person singular present subjunctive
third-person singular imperative
6.Verbfirst/third-person singular present subjunctive
7.Verbthird-person singular imperative